iankelling.org Git - automated-distro-installer/blob - fai/config/scripts/DEBIAN/30-interface

   1 #! /bin/bash
   2
   3 error=0; trap 'error=$(($?>$error?$?:$error))' ERR # save maximum error code
   4
   5
   6 newnicnames() {
   7
   8     # determine predictable network names only for stretch and above
   9
  10     [ $do_init_tasks -eq 0 ] && return
  11
  12     ver=$($ROOTCMD dpkg-query --showformat='${Version}' --show udev)
  13     if dpkg --compare-versions $ver lt 220-7; then
  14         return
  15     fi
  16
  17     [ -z "$NIC1" ] && return
  18
  19     fields="ID_NET_NAME_FROM_DATABASE ID_NET_NAME_ONBOARD ID_NET_NAME_SLOT ID_NET_NAME_PATH"
  20     for field in $fields; do
  21         name=$(udevadm info /sys/class/net/$NIC1 | sed -rn "s/^E: $field=(.+)/\1/p")
  22         if [[ $name ]]; then
  23             NIC1=$name
  24             break
  25         fi
  26     done
  27     if [[ ! $name ]]; then
  28         echo "$0: error: could not find systemd predictable network name. Using $NIC1."
  29     fi
  30 }
  31
  32 if [ -z "$NIC1" ]; then
  33     echo "ERROR: \$NIC1 is not defined. Cannot configure /etc/network/interfaces properly."
  34 fi
  35 newnicnames
  36 CIDR=$(ip -o -f inet addr show $NIC1 | awk '{print $4}')
  37 if ifclass DHCPC && [ $FAI_ACTION = "install" -o $FAI_ACTION = "dirinstall" ]; then
  38
  39     cat > $target/etc/network/interfaces <<-EOF
  40         # generated by FAI
  41         auto lo $NIC1
  42         iface lo inet loopback
  43         iface $NIC1 inet dhcp
  44 EOF
  45 elif [ $FAI_ACTION = "install" -o $FAI_ACTION = "dirinstall" ]; then
  46       [ -n "$CIDR" ] && cat > $target/etc/network/interfaces <<-EOF
  47         # generated by FAI
  48         auto lo $NIC1
  49         iface lo inet loopback
  50         iface $NIC1 inet static
  51           address $CIDR
  52           gateway $GATEWAYS
  53 EOF
  54     [ -n "$NETWORK" ] && echo "localnet $NETWORK" > $target/etc/networks
  55     if [ ! -L $target/etc/resolv.conf -a -e /etc/resolv.conf ]; then
  56         cp -p /etc/resolv.conf $target/etc
  57     fi
  58 fi
  59
  60 # here fcopy is mostly used, when installing a client for running in a
  61 # different subnet than during the installation
  62 fcopy -iM /etc/resolv.conf
  63 fcopy -iM /etc/network/interfaces /etc/networks
  64
  65 exit $error